1848 Address Unknown, Factory Island, Saco, Maine.
1849 Address Unknown, Factory Island, Saco, Maine.
John Dennett was mentioned in one announcement that appeared on January 18, 1848. In the Maine Democrat (Saco, Maine). Likeness of Gov. Fairfield.—Mr. Omsby (Sic.) has, at his Daguerreotype Room, an excellent likeness of the late Hon. John Fairfield, taken just before he left home for the last time, From this he has taken several copies for some of our townsmen, and can take any number more. The copies are life-like. There are also likenesses from the plate engraved for the Democratic Review, but the expression is not so natural. Mr. John Dennett has taken some very good Daguerreotype copies of this engraving.
Mr. Omsby’s room is in the Cataract Block, where all who wish may see this remembrancer of our late friend—and get a copy of their own features if they choose.
John Dennett is recorded in Craig’s Daguerreian Registry as being active in 1849 on Factory Island, Saco, Maine.
 Craig’s Daguerreian Registry.